Ἰνδικά 30b: Fragm. XXX. B. Solin. 52. 26-30.

30b

Near a mountain which is called Nulo there live men whose feet are turned backwards and have eight toes on each foot. Megasthenes writes that on different mountains in India there are tribes of men with dog-shaped heads, armed with claws, clothed with skins, who speak not in the accents of human language, but only bark, and have fierce grinning jaws. [In Ktesias we read that in some parts the females bear offspring but once, and that the children are white-haired from their birth, &c.]
Those who live near the source of the Ganges, requiring nothing in the shape of food, subsist on the odour of wild apples, and when they go on a long journey they carry these with them for safety of their life, which they can support by inhaling their perfume. Should they inhale very foul air, death is inevitable.